Bambu,
On the issue of the roads becoming parking lots...
In Battle Mountain, Nevada, there is lots of wide open space. We have a lot of wide open space in the USA, not everyone has to cram into Los Angeles and New York and Miami.
In Los Angeles, more subways are needed underground, and also high speed trains are needed to connect cities, etc.
Also, each neighborhood needs a grocery store, and a pharmacy, and a hospital, etc, so everything is close.
People also need to have home offices, so they can work from home. We need to identify jobs which can be done from home, and then we need to train people on how to work from home.
There are many ways that we can improve the situation so that people do not spend 4 hours per day stuck in traffic on the freeway.
Salute,
Tony V.